High Rpm....low speeds

Discussion in 'Ask An Owner Operator' started by trucky909, Sep 20, 2020.

  1. trucky909

    trucky909 Light Load Member

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    I said this probably 5 different and I dont know why some weren't grasping.

    All I wanted to know basically was it normal for my truck to be in 7th gear already at 18 mph @1500 rpm? Was it normal for my truck to be on 8th gear already at 1500 rpm goin 25 mph?

    This was a yes or no question.....

    Not sure how this question wasn't understood.

    Most of the answers I got was...."no...thats not normal...it's your clutch..." "you have clutch slippage...' "the previous clutch job wasn't done right...."

    Well its not the clutch.....

    I have no idea how that question went over some of your heads....
     
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  3. Long FLD

    Long FLD Road Train Member

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    Because you stated, multiple times, that the rpms climbed faster while loaded compared to empty for the same speed. In the very first post in this thread you said this is when empty and it’s worse when loaded.
     
  4. trucky909

    trucky909 Light Load Member

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    Ok this is the clutch that was pulled. Mechanic advised to replace.....it was 50/50 split on suggestions on other posts to either replace or put back in. I chose to put back in.

    Holes in the story ...I don't know....i though I asked a basic question and didn't really get clear answers outside that maybe it's the clucth.

    Truck is only increasing 5mph in speed in gears 4 through 7, from 1000 rpm to 1500 rpm, and leveling out in gears 8 through 10. I just wanted to know was that normal.....and it turned into calculus.

    I've taken the truck to 3 mechanics to diagnose....nobody could find anything. Did I hear that maybe the transmission wad swapped without me knowing a few times as a last suggestion? Yes

    Mechanic that fixed the tail of the transmission said that transmission is fine....gears are fine, and this is the transmission that matches the truck....if that means anything.

    The delete.....you're suggesting that maybe the delete caused other problems. That was my last resort....but if there is a problem caused by the dete....no one else that's diagnosed this truck has mentioned that. The 3 computers I've had on the truck....they said everything looks fine.

    So I don't know......
     

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  5. trucky909

    trucky909 Light Load Member

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    I thought I asked it right initially... but maybe I didn't. If I had a chance to ask it differently/correctly....I guarantee you....it would've still been split on suggestions. A clutch would've been mentioned....."how the hell are you in 7th gear at 18mph already @1500rpm would've been mentioned....and so on.

    I'm just gonna roll with it.....
     
  6. Rideandrepair

    Rideandrepair Road Train Member

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    That’s what it should be running with 264 rears.
     
  7. Rideandrepair

    Rideandrepair Road Train Member

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    Guess I’m wrong again. Based on the examples given, if my math is correct, 1250 RPMs would be 56.36 mph. I could be wrong, Lol.
     
  8. abyliks

    abyliks Road Train Member

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    to be fair I don’t think he even knows what he is describing

    different ratios/trans will all have different shift points, a truck with 4.33s and a 15 speed are going to change gears and climb different then a 13 speed with 3.55s, I’m not trying to say this wrong but I don’t think the parts swapped or op have any idea what they are actually talking about
     
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  9. REALITY098765

    REALITY098765 Road Train Member

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    [​IMG]

    If you put that back in, that's all I need to know.
     
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  10. Ridgeline

    Ridgeline Road Train Member

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    look did it fix the problem?

    no so it wasn’t a clutch problem, right?

    the mechanics are idiots, they looked at what on the computer, and what did they use?

    Did they actually use oem software to see what the calibration and ECM file is?

    is it a modified ECM file from some clown who hacks the ECM for the delete?

    Did any mechanic actually look to see if the ECM is actually defective which can cause the problem?

    did you do a follow the truck with someone to see what the actual speed is?
     
  11. trucky909

    trucky909 Light Load Member

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    Speed arw fine....i look at the GPS speed and odometer.

    No I put new one in.....pilot bearing....clutch brake...flywheel resurfaced....
     
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